From ad84550c0c0c9d8d4c3f6d911619ffd36794a94a Mon Sep 17 00:00:00 2001
From: rboy1 <3846367+rboy1@users.noreply.github.com>
Date: Sat, 15 Nov 2025 23:34:43 -0500
Subject: [PATCH 1/2] Fix for integer overflow

zwave required signed integers
---
 drivers/SmartThings/zwave-switch/src/init.lua | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/SmartThings/zwave-switch/src/init.lua b/drivers/SmartThings/zwave-switch/src/init.lua
index 5814945884..ba1899a38f 100644
--- a/drivers/SmartThings/zwave-switch/src/init.lua
+++ b/drivers/SmartThings/zwave-switch/src/init.lua
@@ -16,6 +16,7 @@ local Configuration = (require "st.zwave.CommandClass.Configuration")({ version
 local SwitchMultilevel = (require "st.zwave.CommandClass.SwitchMultilevel")({ version = 4 })
 local preferencesMap = require "preferences"
 local configurationsMap = require "configurations"
+local utils = require "st.utils"
 
 local lazy_load_if_possible = require "lazy_load_subdriver"
 
@@ -65,7 +66,7 @@ local function info_changed(driver, device, event, args)
   for id, value in pairs(device.preferences) do
     if args.old_st_store.preferences[id] ~= value and preferences and preferences[id] then
       local new_parameter_value = preferencesMap.to_numeric_value(device.preferences[id])
-      device:send(Configuration:Set({ parameter_number = preferences[id].parameter_number, size = preferences[id].size, configuration_value = new_parameter_value }))
+      device:send(Configuration:Set({ parameter_number = preferences[id].parameter_number, size = preferences[id].size, configuration_value = utils.unsigned_to_signed(new_parameter_value, preferences[id].size) }))
     end
   end
 end
@@ -78,7 +79,7 @@ local function do_configure(driver, device)
   local configuration = configurationsMap.get_device_configuration(device)
   if configuration ~= nil then
     for _, value in ipairs(configuration) do
-      device:send(Configuration:Set({ parameter_number = value.parameter_number, size = value.size, configuration_value = value.configuration_value }))
+      device:send(Configuration:Set({ parameter_number = value.parameter_number, size = value.size, configuration_value = utils.unsigned_to_signed(value.configuration_value, value.size) }))
     end
   end
 end

From 5a4a4545e5a05c7cc42121d814ffd5fc3165fc31 Mon Sep 17 00:00:00 2001
From: rboy1 <3846367+rboy1@users.noreply.github.com>
Date: Sat, 15 Nov 2025 23:36:04 -0500
Subject: [PATCH 2/2] Fix for integer overflow

---
 .../SmartThings/zwave-switch/src/aeotec-heavy-duty/init.lua    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/SmartThings/zwave-switch/src/aeotec-heavy-duty/init.lua b/drivers/SmartThings/zwave-switch/src/aeotec-heavy-duty/init.lua
index 2a47c4e122..471973dfd8 100644
--- a/drivers/SmartThings/zwave-switch/src/aeotec-heavy-duty/init.lua
+++ b/drivers/SmartThings/zwave-switch/src/aeotec-heavy-duty/init.lua
@@ -10,6 +10,7 @@ local cc = require "st.zwave.CommandClass"
 local Configuration = (require "st.zwave.CommandClass.Configuration")({ version = 4 })
 
 local preferencesMap = require "preferences"
+local utils = require "st.utils"
 
 
 local LAST_REPORT_TIME = "LAST_REPORT_TIME"
@@ -79,7 +80,7 @@ local function info_changed(driver, device, event, args)
       device:send(Configuration:Set({
         parameter_number = preferences[id].parameter_number,
         size = preferences[id].size,
-        configuration_value = new_parameter_value
+        configuration_value = utils.unsigned_to_signed(new_parameter_value, preferences[id].size)
       }))
     end
   end